https://www.sciencedaily.com/releases/2019/03/190328150918.htm

The move would also decrease the number of cancer cases nationwide by up to 29,400 over that time period. However, screening a greater number of older and high-risk adults would avert nearly three times as many diagnoses and deaths at a lower cost, the study found.

The study models potential effects of a 2018 change to the American Cancer Society's screening guidelines. Following increases in the incidence of colon and rectal cancer among people in their 40s, the society lowered the recommended age for a person at average risk of colorectal cancer to begin screening from 50 to 45. Other groups, including the U.S. Preventive Services Taskforce, are studying whether their screening recommendations should also change.